Ralphs Grocery review: customer service

I purchased two items at self checkout which totalled 6.83. I put a five dollar bill in first then two singles. The monitor said 4.83 balance which let me know that the five did not register. I informed the employee and she opened it up and said she didn't see anything. I am a manager myself at a kroger store and asked her to either do an audit or have the manager do a camera check. She told the manager what happened and he said there was nothing he could do. I waited going back and forth with the employee and asked her to call the manager. She did so over the intercom and he called her back and said be was receiving a load. In training we are taught to take care of the customer and he brushed me off. I felt very disrespected and dont even know if i want to shop at this location anymore. I shop at this location at least 2 to 3 times a week. The manager on duty was Dennis Marshall. I had to let the employee know what the customer satisfaction code was. That is ridiculous and should never happen. A five minute trip to the store turned into a 30 minute nightmare. Smh